21045870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{617}}^1$

素因数の和:1009

約数の個数: 48

約数和(自身を含む): 54952560

約数和(自身を除く): 33906690

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 379, 617, 758, 1137, 1234, 1851, 1895, 2274, 3085, 3411, 3702, 3790, 5553, 5685, 6170, 6822, 9255, 11106, 11370, 17055, 18510, 27765, 34110, 55530, 233843, 467686, 701529, 1169215, 1403058, 2104587, 2338430, 3507645, 4209174, 7015290, 10522935, 21045870]

約数ペア:

[(1, 21045870), (2, 10522935), (3, 7015290), (5, 4209174), (6, 3507645), (9, 2338430), (10, 2104587), (15, 1403058), (18, 1169215), (30, 701529), (45, 467686), (90, 233843), (379, 55530), (617, 34110), (758, 27765), (1137, 18510), (1234, 17055), (1851, 11370), (1895, 11106), (2274, 9255), (3085, 6822), (3411, 6170), (3702, 5685), (3790, 5553)]